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This is a program that shows how functions with the same name can be overloaded with different data types and different number of arguments.
The function selected is based on the number and types of the formal parameters only.
The type of the return value is not significant in overload resolution.
The program given below uses member functions to display words and characters.
These member functions are overloaded to take arguments of type integer, char or string.
#include <iostream>
#include <cstring>
using namespace std;
class Words 
	char title[20];
	Words() // Constructor
		strcpy(title," ");
	void display(int i) // Display with int argument
		cout << "Parameter is " << num << endl;
		cout << "This is not a string" << endl;
	void display(char c) // Display with char argument
		title[0] = c;
		cout << "Parameter is " << title[0] << endl;
		cout << "This is a single letter" << endl;
	void display(string s) // Display with string argument
		strcpy(title, s.c_str());
		cout << "Parameter is " << title << endl;
		cout << "String length is: " << strlen(title) << endl;
	void display(string s, int i) // Display with string and int
		strcpy(title, s.c_str());
		cout << "Parameters are " << title << " and " << num << endl;
		cout << "String length is: " << strlen(title) << endl;
	Words obj;
	obj.display(120);
	obj.display('B');
	obj.display("GNU");
	obj.display("Linux Tux", 5);

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